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Table 4 Comparison between group A: VCV and group B: PCV-VG according to PaO2

From: Comparison between volume-controlled ventilation and pressure-controlled volume-guaranteed ventilation in postoperative lung atelectasis using lung ultrasound following upper abdominal laparotomies: a prospective randomized study

PaO2 Group A: VCV (n = 30) Group B: PCV-VG (n = 30) t test p value
Preoperative 85.50 ± 10.09 85.83 ± 8.31 0.138 0.890
After induction 83.79 ± 9.89 85.66 ± 8.14 0.800 0.427
Immediate postoperative 81.54 ± 8.06 85.57 ± 14.25 1.348 0.182
Postoperative at 30 min 81.9 ± 7.03 86.02 ± 13.40 1.491 0.141
Postoperative at 120 min 83.59 ± 8.40 83.03 ± 14.06 0.187 0.852
Postoperative at 240 min 84.52 ± 7.73 85.5 ± 12.07 0.374 0.709
Postoperative at 360 min 85.72 ± 9.01 86.85 ± 13.76 0.376 0.708
  1. Data presented as mean ± SD and numbers as appropriate; p value < 0.05 was considered statistically non-significant
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